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Member #39248

Member Since: May 11, 2008

Country: United States

  • Question:

    Can a device like this be used to protect the ADC on the Arduino from over-voltage? I am working on a circuit and I don’t have an oscilloscope, so I will be experimenting with different gains on an op amp until I get a good voltage range for input into the ADC.

    Can (or should) I use a Zener like this to prevent sending too much voltage to the ADC input without altering lower voltage signals (i.e. will the signal be unmodified if the max voltages stay under the zenar’s trigger voltage)?

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